Electrical Connection - Dimplex LA 11TAS Instructions D'installation Et D'utilisation

LA 11TAS - LA 16TAS
Minimum heating water flow rate
The minimum heating water flow rate through the heat pump
must be assured in all operating states of the heating sys-
tem. This can be accomplished, for example, by installing either
a dual differential pressureless manifold or an overflow valve.
The procedure for adjusting an overflow valve is described in the
Chapter Start-Up. When the minimum flow rate is undershot , the
plate steel exchanger in the refrigerating cycle can freeze, which
can lead to total loss of the heat pump.
NOTE
The use of an overflow valve is only recommended for panel heating and
a max. heating water flow of 1.3 m³/h. System faults may result if this is
not observed.
Antifreeze
Heat pump systems, which cannot be guaranteed to be
frostfree, should be equipped with a drainage option (see Fig.).
The antifreeze function of the heat pump manager is active
whenever the heat pump manager and the heat circulating pump
are ready for operation. If the heat pump is taken out of service
or in the event of a power failure, the system has to be drained.
The heating circuit should be operated with a suitable antifreeze
if heat pump systems are implemented in buildings where a
power failure can not be detected (holiday home).
EN-6

6.3 Electrical connection

A standard four-core cable is used for connecting the heat pump
to the power supply.
The cable must be provided by the customer. The conductor
cross section is selected in accordance with the power consump-
tion of the heat pump (see Appendix Device Information) and the
applicable VDE (EN) and VNB regulations.
An all-pole disconnecting device with a contact gap of at least
3 mm (e.g. utility blocking contactor or power contactor) as well
as a 3-pole circuit breaker with common tripping for all external
conductors must be installed in the power supply (tripping current
in compliance with the Device Information).
Ensure that the incoming supply has a clockwise rotating field
when connecting multiphase devices.
Phase sequence: L1, L2, L3.
ATTENTION!
Ensure that there is a clockwise rotating field: Operating the compressor
in the wrong rotational direction could cause damage to the compressor.
The control voltage is supplied via the heat pump manager.
The heat pump manager has a 230 V AC-50 Hz power supply.
Connect the manager in compliance with its own operating in-
structions (see type plate for fuse protection).
ATTENTION!
The control line is essential for the operation of air-to-water heat pumps
for outdoor installation. The control line must be laid separately from the
mains cable. It is not permissible for the customer to extend the control
line.
The control line (not included in scope of supply) is connected to
the heat pump manager using the two rectangular plug connec-
tors. The plug connector on the switch box must be used close to
the pivotal point in the heat pump. More detailed information can
be found in the operating instructions of the heat pump manager.
For detailed information, see Circuit Diagrams in the Appendix.
452164.66.01 · FD 9211 www.dimplex.de